Nut-lock.



E. J. HODGES.

NUT LOOK.

APPLICATION FILED NOV. 29, 1913.

1 1 1 3,344. Patented Oct. 13, 1914.

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UNITE EZRA J. HODGES, OF ALGONA, IOWA.

NUT-LOCK.

Application filed November 29, 1913.

To alZ whom it may concern:

Be it known that I, EZRA J. Honors, a citizen of the United States,residing at Algona, in the county of Kossuth and State of Iowa, haveinvented certain new and use ful Improvements in Nut-Locks, of which thefollowing is a specification, reference being had therein to theaccompanying drawmg.

This invention relates to nut locks and more particularly to that classwhich are provide-d with a gripping washer for engag' ing the supportthrough which the bolt passes and which has means to engage a nut andprevent the rotation of the same upon the bolt.

The object of this invention is 'to provide a nut lock of the kind abovereferred to, that provides a washer made of two parts, a gripping memberfor a support, and an outer member for engaging a nut.

Another object of this invention is to provide a nut lock of the kindabove described which is simple in construction, efficient in operationand consists of the minimum number of par-ts.

With these and other objects in view, this invention consists of certainnovel combinations, constructions and arrangements of parts as will behereinafter fully described and claimed.

In the accompanying drawing :Figure 1 is a top plan view of the improveddevice mounted on a bolt and in engagement with a nut. Fig. 2 is asection taken on line 22 of Fig. 1. Fig. 3 is a perspective view of awasher showing a part of the inner member broken away. Fig. 4 is aninverted perspective view of the inner member of the locking washer.

Referring to the parts by reference numerals, the part of the boltindicated by the numeral 10, passes through an opening in a support 11and has threaded on its end a nut of the ordinary type 12. The lockingdevice for this nut 12 is positioned between the inner edge of the nut12 and the support 11. This above mentioned locking means is a washerconsisting of an inner member 13 and an outer member 14:, said innermember 13 being of greater thickness than the outer member 14, thepurpose of which will be hereinafter fully set forth. The innerSpecification of Letters Patent.

Patented Oct. 13, 1914.

Serial No. 803,715.

member 13 is provided on its under face with teeth 15 that are adaptedto engage the support 11. This inner member 13 is rectangular in shapeand is provided with a central opening 16 for allowing the member to beplaced upon the bolt 10. The outer member 14 is provided with arectangular shaped opening 17 and has on its edge, tongues 18 formed bymeans of the slits 19. After the bolt has been placed through theopening in the support 11, the inner member of the washer is placed onthe bolt and the teeth 15 engage the support 11, the outer member of thewasher is then placed upon the bolt, the rectangular shaped opening 17fitting snugly around the rectangular shaped member 13 and the nut 12 isthen threaded upon the bolt 10 until the same comes into engagement withthe upper face of the washer, thus forcing the teeth securely in thesupport 11 inasmuch as the inner member 13 is of greater thickness thanthe outer member 14:. The nut 12 is of greater width than therectangular inner member 13 thus engaging the outer member 14 of thewasher to prevent the same from eing accidentally removed, and then toinsure the positive locking of the nut one of the tongues 18 is bentinto engagement with the side of the nut 10. It is, of course, obviousthat all of the tongues 18 can be brought into engagement with the sidesof the nut as the device is shown in Fig. 1, but the tongues areprovided on all sides of the Washer to insure the engagement of the nutat any point that should be necessary.

It is obvious that minor changes may be made in the form andconstruction of this invention without departing from the spiritthereof. It is, therefore, not wished to confine the invention to theexact form herein shown and described, but it is wished to include allsuch as properly come within the scope claimed.

What is claimed as new is A nut lock comprising a washer, said washercomprising an inner and outer member, said inner member beingrectangular in shape and having teeth formed upon its under face, saidouter member having a rectangular opening formed therein adapted to beplaced around said inner member, tongues formed on the outer edge ofsaid outer member, said inner member capable of longitudinal movement insaid outer member and being of greater thickness than said outer member,whereby when a nut is brought into engagement with said was-her, theteeth of said inner member will be forced into a support, thus holdingsaid outer member from rotation, and said tongues of said EZRA J.HO'DGES. \lVitnesses:

J. l V. SULLIVAN,

LAURA SGHULZE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

